Bookies left reeling as Am I Blue lands hefty gamble

The four-year-old had failed to score on any of her previous 16 starts and had been beaten 88 lengths when last of 12 on her latest appearance at Worcester.
But having been available at 25-1 in the opening shows yesterday morning, the Delyth Thomas-trained filly was backed at all rates down to just 5-1 before the off.